James sangster



@with 1 taire atrat ffrrrr JAM/ns SAN-essen, lor' BUFFALO; NEW YORK.v

v .Lettere Patent No. 62,781, dated lllarct i12, 1867'.

' IMPROVBD einer vterminus.

" To ALL wnoirfrr Marcouczsnm ,Be it known` that I, JAMES SANGSTER, oBuffalo, in the county oi` Erie, and State of New York, have inventedcertain new and-useful improvements in und on Brick Machines; and I doherebydeclarc that the following is a full, clear,`and exact'description of the construction and 'operation of the same, referencebeing had to the annexed .ipeeiicntiorn invwhichi Figure 1 is a sideelevation.l

Figure 2, n. front view. Figure 3, a vertical longitudinal sectionix iFigures 4 and 5 represent the crushing rollers, Figure (i is aperspective view of the'inside of the mould." I "The .nature of myinvention consists in, first; the arrangement and combination ofthemechanism for giving' the necessary motions to the charger and pressingpiston ,of a brick machine, by means of whichthe employment of cams,sofobjeetionnble in machinery for making bricks, is4 rengderedunnecessary; second, in the employment of rollers for crushingorgrinding the clay, when one or more sets of said rollers are madevof aserpentine'form, or so turnedas to' have a number of concentric groovesfor purposes to bemore clearly hereinafter deseribedi third, in the.arrangement and construction ofthe mould by means of which one mould,after being worn, may

' be easily 'and quickly exchangedfor a new oneg'fourth, in constructingthe mould near the bottom so that the 4opening. becomes wider or larger,thereby'leavingroom, after the lower piston has descended, forventilation during vthefffiperation .oflling with clay;.iifth, in theemployment ot acounterbalance for equalizing the motion of themaehinery.i

i 'Like letters in theseverai figures represent similar parts.

AA Avreprescnt thc connecting-rods or arms for moving the pressingpiston; theyvare connected to the piston G at the joints B B, and tothedriving-wheels or cranks at the joints B and B. 4O and C representthe drivingwheels or .pinions,.whi`ch 'are fastened to the shaft-D. E isthe charger which slides in grooves "in the sides of the machine, whichare shown in. the front view, in fig. 2, and markedF F. The chargerreceives its motion"l from the pist-on G, the arms'H I and R'is thehopper which'supplies it with clay. The

lower piston is representedl by the letter K; it is so constructed astodescend byits own weight to its resting place on the projections L L;it receives its motionfrom the friction-roller O, which is-attachcd tothe shaft P. M represents the mould-bed, and S, inthe section view, fig.3, is the mould-box; it is fastened in place by means of screws. Aperspective view of said mould, separate from themouid-bed, is shown 'infig. 6. T represents a large spur-wheel which is driven hy one of thepinions C, and T1, a segment of a wheel similar in diameter 'to thewheel T. The'scgment ILengagcs only at or about the time the pressure isbeing given to the brick or clay; it also ,acts ,las la ccunterbalanceto the weight ot'v thc'piston G, thereby'equalizing the-motion andlessens the powcrnccessary to drivcvthe machine. The crushing-rollersare represented by the'letters Ul, U2, U3, and U; they receive theirmotionA from the wheel V, which engages with smaller wheels attached tothe shaft of each roller, and to the wheel ou the shaft U.' One set ofthe rollers' shown is made with concentric .grooves or depressions,similar or equivalent to those shown in jig. 5; the object being tocause the clay to be forced and fall through'said rollers in thin bentor curved Hakes, which in turn pass through straight rollers, and, notbeing elastic, n'r'e broken and'cr'umblefin'to dust. The mould S is madeHaring to afford ventilation whilevlling, as shown at Y, in Iig. 3. Themachine is constructed of iron and brass. ,v

Its operation is as follows: In figfl, the piston Gr is 'represented asraised to its highest point, which position brings the charger to itsFarthcrest peint forward, 'and directly lover the moulds, which is newfilled with clay from said charger, and the brick previously formed ispushed `forward bythe front of the charger on to the front part of themould-board M, as shown in iig. 3, at X. movement ofthe pinion C, (whichis given in a large'machinc, by means of a pulley andl belt on'one endof' the shaft D,) in t'he ldireccion oi`.tl1e arrow, brings thepiston-G- downward, which imparts the necessary motion to the charger bymeans of the arms H .I and I,

the upper end ofthe arm Ibeing jointed or connected to it, as shown inFigs. lend 3v As said motion of the pinion continues, the charger movesbackward, leaving the moulds full of clay, and the opening in saidcharger passes under the opening in the hopper R', from which-it isagain filled with clay. In the meantime the piston ausi 2 G hascompleted its movementI downward and pressed the brick, and is non'beginning to ascend; and the lower piston, which is representedby *heletter K, lifts the brick npjust in time for thc-.charger in its motionforward to push it oil; the lower piston now drops down7 and the mouldis again filled as before. *A

I (lo not claim as my invention the charger E, receiving its clay fromo. hoppcrrfor lling the mould; neither do I cla-im the piston K forlifting up the brick in time' to be p'ushd'o by tbcchnrger as it movesforward. But what'I do claim as my invention, und desire to secure byLetters Patent, i s K- 1. Thecombination and nrrnngement of the nrins HI and J; and thepiston G, when constructed snbsta-n tially as described..i l i 2. The grooved rollers, when u sed in combination with plain oi'straight rollers, as and for tbe purposes described. l g l v 3. Theconstruction of the lower pat of the mould, by means of which the pistonK', :1S it descends, leaves the necessary ventilation, as described. i'v l A4. The segment T1, when constructed substantially-:is Aund-fer thepurposes described and set Igorth.

5. I claim the arms A. A, anclcmnk-wh'eclsT und T, when used 'to givethe reciprocating motions to the pressing piston of a. brick machine,substantially as described.4 i'

.muss4 SANGSTER.

Witnesses:

G. T. MfATT, 1 OscAn FoLsoM

